string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E5%BB%BA%E5%BB%BA%E7%AD%91%E5%AE%9E%E5%8A%A1%E9%83%AD%E7%82%9C => Failed to connect to 14.18.117.71 port 38133: Connection refused"
二建建筑实务郭炜
